I'm running: nxserver-freenx-0.7.3_p104-r7 After recent upgrade, system installed new stable openssh-7.1_p1-r2 I know "nxserver" is using ssh-dss keys and they are disabled in openssh-7 To enable it, I added to sshd_config: PubkeyAcceptedKeyTypes=+ssh-dss but I still gen an error from nxserver: When I downgraded to openssh-6.9_p1-r2 the "nxsetup --test" connection works. Reproducible: Always Steps to Reproduce: 1.nxsetup --test 2. 3. Actual Results: ----> Testing your nxserver connection ... Permission denied (publickey,keyboard-interactive). Fatal error: Could not connect to NX Server. Please check your ssh setup: The following are _examples_ of what you might need to check. - Make sure "nx" is one of the AllowUsers in sshd_config. (or that the line is outcommented/not there) - Make sure "nx" is one of the AllowGroups in sshd_config. (or that the line is outcommented/not there) - Make sure your sshd allows public key authentication. - Make sure your sshd is really running on port 22. - Make sure your sshd_config AuthorizedKeysFile in sshd_config is set to authorized_keys2. (this should be a filename not a pathname+filename) - Make sure you allow ssh on localhost, this could come from some restriction of: -the tcp wrapper. Then add in /etc/hosts.allow: ALL:localhost -the iptables. add to it: $ iptables -A INPUT -i lo -j ACCEPT $ iptables -A OUTPUT -o lo -j ACCEPT Expected Results: What I should be getting is this: ----> Testing your nxserver connection ... HELLO NXSERVER - Version 3.2.0-74-TEAMBZR104 OS (GPL, using backend: 3.5.0) NX> 105 quit Quit NX> 999 Bye <--- done Portage 2.2.20.1 (python 3.4.3-final-0, default/linux/amd64/13.0/desktop, gcc-4.9.3, glibc-2.21-r1, 3.10.7-gentoo-r1 x86_64) ================================================================= System uname: Linux-3.10.7-gentoo-r1-x86_64-AMD_FX-tm-8150_Eight-Core_Processor-with-gentoo-2.2 KiB Mem: 8092984 total, 1742224 free KiB Swap: 8757244 total, 8757020 free Timestamp of repository gentoo: Thu, 05 Nov 2015 21:30:01 +0000 sh bash 4.3_p39 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 app-shells/bash: 4.3_p39::gentoo dev-java/java-config: 2.2.0::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.10::gentoo, 3.3.5-r1::gentoo, 3.4.3::gentoo dev-util/cmake: 3.3.1-r1::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.17::gentoo sys-apps/sandbox: 2.6-r1::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.13.4::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.5.4::gentoo, 4.9.3::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 3.18::gentoo (virtual/os-headers) sys-libs/glibc: 2.21-r1::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://10.0.0.103/gentoo-portage priority: -1000 Local location: /usr/local/portage masters: gentoo priority: 99999999 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA googleearth PUEL dlj-1.1 Oracle-BCLA-JavaSE" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/fax /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /var/spool/fax/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.6/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cli-php5.6/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--autounmask-write=y --keep-going --with-bdeps=y" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://mirror.csclub.uwaterloo.ca/gentoo-distfiles/ http://gentoo.osuosl.org/ ftp://mirror.csclub.uwaterloo.ca/gentoo-distfiles/ http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/ ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ ftp://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/ http://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/" LANG="en_US.UTF-8" LC_ALL="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9 --load-average=8" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" USE="X a52 aac acpi alsa amd64 apache2 bluetooth branding bzip2 cairo cdda cdr cgi cleartype cli consolekit consolkit corefonts cracklib crypt cups cxx dbus dri dts dvd dvdr emboss encode exif fam firefox flac foomaticdb fortran gdbm gif gimp gimpprint glamor gpm gtk iconv ipv6 java jpeg kpathsea lcms ldap libnotify lock mad mmx mmxext mng modules mp3 mp4 mpeg multilib mysql ncurses nls nptl ogg opengl openmp pam pango pcre pdf png policykit ppds qt3support readline scanner sdl seccomp session spell sse sse2 ssl startup-notification svg tcpd tetexspell thunar tiff truetype type1 udev udisks unicode upower usb vorbis wxwidgets x264 xattr xcb xml xv xvid zlib" ABI_X86="64 32" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx fma4 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 xop" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5 php5-6" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby21" SANE_BACKENDS="epson2" USERLAND="GNU" VIDEO_CARDS="nvidia nouveau" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
both the client and the server have to accept dss keys, not just the server. you also need to restart the server when you change its config. that said, nx shouldn't be using dss keys in the first place. i thought we had freenx in the tree, but maybe it's been punted, in which case not really our problem anymore.